BIG Fiber Strengthens San Francisco Bay Area Infrastructure with Strategic Expansion into CoreSite’s San Jose Data Center

BIG Fiber announced that it has completed the latest expansion of its San Francisco Bay Area network with a strategic buildout into CoreSite’s SV1 data center in San Jose. This expansion is critical to BIG Fiber’s mission to deliver increased capacity to the Bay Area, creating a high-density AI-enabled network that allows innovators to scale seamlessly across more than 65 interconnected data centers. With the completion of this project, BIG Fiber offers enterprise and hyperscale customers a modern, high-capacity alternative to congested legacy infrastructure.

As AI adoption accelerates, regional data center vacancy rates have reached record lows meaning many legacy fiber networks in the Bay Area have become tapped out. This has left organizations that rely on mission critical digital infrastructure to fully leverage technology with limited capacity and a lack of true physical diversity. BIG Fiber’s latest 6,000-foot buildout into CoreSite’s facility, located at 55 S. Market Street in San Jose, provides tenants with access to a new, purpose-built network designed for the demands of 2026 and beyond.

“Our latest expansion is the final piece of the puzzle for our San Jose footprint,” said Patton Lochridge, CCO at BIG Fiber. “In dense environments like downtown San Jose, achieving true route diversity is an engineering challenge. By investing in this new infrastructure, we provide our customers with paths that bypass the congestion of legacy networks. We’re fully committed to providing more options for our customers to access new networks critical for AI workloads in one of the most dynamic data center markets in the world.”

With this addition, BIG Fiber is now present in the majority of major carrier hotels encircling the Bay Area, including key hubs at 200 Paul in San Francisco, 1100 Space Park Drive and 2820 Northwestern in Santa Clara, and the Great Oaks campus in Santa Clara. BIG Fiber’s San Francisco Bay Area network has more than 310 route miles and 2 million fiber miles, connecting the most critical data centers across the region.

The expansion into CoreSite’s SV1 data center enables tenants to leverage BIG Fiber’s dark fiber for high-speed, low-latency connectivity. To ensure maximum reliability, BIG Fiber is implementing a second entrance into the building, offering physical path diversity.

“CoreSite is committed to providing our customers with a robust ecosystem of high-performance connectivity options in all of our data center campuses, enabling them to quickly scale and interoperate with their businesses to support the increasing demands of critical workloads, like AI and high-density applications,” said Matt Senderhauf, VP of Interconnection Strategy at CoreSite. “The addition of BIG Fiber to our SV1 data center enhances the value we provide to our tenants by offering them new, diverse dark fiber routes that are essential for navigating today’s data-heavy environment.”

Source: BIG Fiber media announcement